At a certain temperature, the rate of this reaction is first order in N₂O₅ with a rate constant of 0.0513 s⁻¹:
2N₂O₅ (g) → 2N₂O₄(g) + O₂(g)
Suppose a vessel contains N₂O₅ at a concentration of 1.12 M. Calculate the concentration of N₂O₅ in the vessel 27.0 seconds later. You may assume no other reaction is important.